| Geographic location |
-114.995833, 39.256944
114°
59'
45"
W,
39°
15'
25"
N
White Pine county,
NV
Ruth
1:24,000 scale map quadrangle
Accurate to within 1 minute (~1 mile)
NW1/4 NE1/4 SEC. 16, T16N, R62E, DRILL CORE FROM LIBERTY OPEN-PIT COPPER MINE NEAR RUTH , ROBINSON MINING DISTRICT
|
|---|---|
| Source of sample | Core or cutting |
| Rock name | Monzonite |
| Description | LIBERTY PIT STOCK. PORPHYRITIC MONZONITE COMPOSED OF ORTHOCLASE, PLAGIOCLASE, QUARTZ AND HORNBLENDE (MANY SMALL INCLUSIONS) PHENOCRYSTS IN A GROUNDMASS OF ORTHOCLASE, QUARTZ, AND BIOTITE (SUBORDINATE TO HORNBLENDE AND OCCASIONALLY CHLORITIC. |
| Laboratories | Lamont (Columbia University) |
| Compiler name | Marvin, R.F. |
| Date compiled | 1975 10 |
| Precision of location | Accurate to within 1 minute (~1 mile) |
| Location comment | NW1/4 NE1/4 SEC. 16, T16N, R62E, DRILL CORE FROM LIBERTY OPEN-PIT COPPER MINE NEAR RUTH , ROBINSON MINING DISTRICT |
| Bibliographic reference | Mcdowell, F.W., 1971, K-Ar Ages Of Igneous Rocks From The Western United States: Isochron/West, No. 2, p. 1-16. |
| (click for info) | |
| Geologic map unit | -114.995833, 39.256944 |
| Nearby scientific data | Find additional scientific data near this location |
| Age estimate | 116.84 ± 3Ma age of intrusion
|
|---|---|
| Type of analysis | conventional K-Ar |
| Rock or mineral analyzed | biotite BIOTITE SEPARATE WITH 5% HORNBLENDE
|
| Analytical details | |
| Lab sample ID | L-962 |
| Decay constants | 4.72E-04, 0.585E-04, 1.19E-04* |
| K2O concentration | 6.445 % |
| Radiogenic 40Ar concentration | 11.2 |
| Radiogenic Ar | 91 % |
| Comments | THIS ANALYSIS ALSO REPORTED IN MCDOWELL AND KULP (1967) |
| Age estimate | 109.4 ± 3Ma age of intrusion
|
| Type of analysis | conventional K-Ar |
| Rock or mineral analyzed | hornblende 100% HORNBLENDE SEPARATE
|
| Analytical details | |
| Lab sample ID | L-962 |
| Decay constants | 4.72E-04, 0.585E-04, 1.19E-04* |
| K2O concentration | 1.01 % |
| Radiogenic 40Ar concentration | 1.64 |
| Radiogenic Ar | 90 % |
| Comments | THIS ANALYSIS ALSO REPORTED IN MCDOWELL AND KULP (1967) |